Prehliadanie podľa Autor "Zimka, Rudolf"

Teraz sa zobrazuje 1 - 3 z 3
  • Obrázok miniatúry
    Položka
    A bidimensional model of central banking under deflationary pressures: evidence from Japan, Germany and Slovakia
    (Vysoká škola ekonomická : Praha, 2025) Boďa, Martin; Zimka, Rudolf; Zimková, Emília
    The contribution presents results of an application of a model of central banking in deflationary conditions based on the ideas defended by Asada (2011, Central banking and deflationary depression, a Japanese perspective) and Asada et al. (2016, The stability of normal equilibrium point and the existence of limit cycles in a simple Keynesian macrodynamic model of monetary policy). The model describes the equilibrium of nominal interest rates and expected price inflation. A correspoding approximate discrete analog is derived for the continuous-time model, and is estimated by using data for the Japanese, German and Slovak economy to describe the actual conditions in which these economies operate. Mathematical properties of the estimated model for each economy separately are studied with an emphasis for their use in economic policy planning and making.
  • Obrázok miniatúry
    Položka
    Dynamic Keynesian models of monetary and fiscal stabilization policies
    (Keynes Society Japan : Tokio, 2025) Asada, Toichiro; Demetrian, Michal; Zimka, Rudolf
    In this paper, we summarize a series of dynamic Keynesian models of monetary and fiscal stabilization policies that were presented in our previous works. All models are formulated by systems of nonlinear differential equations. We take up three models sequentially. The first model is the simplest two-dimensional model of monetary stabilization policy without debt effects. The second model is more complicated four-dimensional model of monetary stabilization policy with private debt effect. The third model is the most general six-dimensional model of monetary and fiscal stabilization policy mix with twin (private and public) debt effects. These models produce various types of dynamic behaviors (stable, unstable, and cyclical behaviors) according to the crucial parameter values.
  • Obrázok miniatúry
    Položka
    Numerical analysis of a Kaleckian model with inflation-deflation expectations
    (Vysoká škola ekonomická : Praha, 2025) Grausová, Mária; Hužvár, Miroslav; Zimka, Rudolf
    We investigate a four-dimensional non-linear Kaleckian macroeconomic model built by Murakami and Asada that describes the developments of the rate of utilization, the wage share, the nominal rate of interest, and the expected rate of inflation. In the study of the system’s behaviour near equilibrium, we focus on model's parameters that ensure the satisfaction of Liu’s criterion and provide potential for Hopf bifurcations. The bifurcation equation of the model allows us to determine the nature of local dynamics with high precision, offering insights into the conditions under which business cycles may arise. These findings are illustrated with numerical simulations, using economically meaningful parameter values to visualize how their changes influence the system's evolution. We analyse in detail the relationship between two model’s parameters - the speed of revisions of inflation-deflation expectations, that is considered a bifurcation parameter, and the credibility of the inflation-targeting policy conducted by the monetary authority. The simulations highlight the economic relevance of the analysis.